Vulnerability · Published Mar 24, 2021 · Assigned by cisco

CVE-2021-1423Cisco Aironet Access Points Arbitrary File Overwrite Vulnerability

Medium 4.4

In plain English

A medium-severity security flaw in Cisco Aironet Access Point Software from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).

Severity (CVSS 3.1)4.4Medium

Exploit odds (30 days)0.2%top 85.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in the implementation of a CLI command in Cisco Aironet Access Points (AP) could allow an authenticated, local attacker to overwrite files in the flash memory of the device. This vulnerability is due to insufficient input validation for a specific command. An attacker could exploit this vulnerability by issuing a command with crafted arguments. A successful exploit could allow the attacker to overwrite or create files with data that is already present in other files that are hosted on the affected device.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco Aironet Access Point Software	n/a

Weakness: CWE-668 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

References

20210324 Cisco Aironet Access Points Arbitrary File Overwrite Vulnerability vendor-advisory, x_refsource_CISCO